US5947838A - Golf club and shaft for improved golf swing - Google Patents

Golf club and shaft for improved golf swing Download PDF

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Publication number
US5947838A
US5947838A US08/888,111 US88811197A US5947838A US 5947838 A US5947838 A US 5947838A US 88811197 A US88811197 A US 88811197A US 5947838 A US5947838 A US 5947838A
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United States
Prior art keywords
shaft
golf club
grip
club head
golf
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US08/888,111
Inventor
Stephen G. Tkacs
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Individual
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Priority to US08/888,111 priority Critical patent/US5947838A/en
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/10—Non-metallic shafts
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06—Handles
    • A63B60/10—Handles with means for indicating correct holding positions
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00—Characteristics of used materials
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/006—Surfaces specially adapted for reducing air resistance
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06—Handles
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
    • A63B60/06—Handles
    • A63B60/08—Handles characterised by the material

Definitions

  • the sport of golf is enjoyed by professionals and amateurs alike.
  • the sport comprises a plurality of holes, usually nine or eighteen, on an area of landscaped land with a series of obstacles, such as water and sand traps.
  • the object of each hole is to hit the golf ball with one or a plurality of golf clubs from the starting point, the tee, into the hole using as few strokes as possible.
  • the first stroke on each hole is the tee-off, which is the initial attempt to hit the ball as close to the hole as possible. This done by trying to hit the ball with maximum distance and accuracy. Much of this effort on the initial stroke or drive is concentrated on the physical technique of the golfer.
  • the golfer attempts to swing the head of the golf club with speed and control to transfer the momentum of the head of the golf club to the golf ball.
  • the golf club itself is designed to maximize the momentum transferred to the ball.
  • the club used to drive the ball is called the driver or "wood.” This club is designed with a thin shaft and a large wooden head.
  • the shaft is conventionally made up of a flexible material, such as a composite material.
  • the weight of the wooden head causes the shaft to bend. This phenomenon is called “waggle.”
  • the club is not always swung perfectly straight, especially considering the rotation of the golfer's hands on the grip of the golf club. This causes the waggle in the shaft to affect the movement of the golf club head.
  • FIG. 1 is an illustration of a cross-section of the shaft and a handle with grip of the golf club of the present invention.
  • FIG. 2 is an illustration of the rectangular block shaped head of the golf club of the present invention.
  • a golf club is provided with a rectangular shaft and grip.
  • the shaft extends between the grip and the club head and can be made of a flexible material, such as a composite material.
  • a rectangular cross-section of the shaft of the golf club is shown.
  • the grip on the shaft also has a rectangular cross-section. This allows the golfer to use the edges of the grip to guide the golfers hands to provide a consistent grip.
  • FIG. 2 the head of the golf club of the present invention is shown.
  • the shaft has a rectangular cross-section.
  • FIG. 2 also illustrates an x-axis parallel to one face of the shaft and a y-axis parallel to another face of the shaft.
  • the direction of the x-axis is the direction of the movement of the golf club head.
  • the direction of the y-axis is perpendicular to and opposes the direction of the movement of the golf club head.
  • the rectangular shape of the cross-section of the shaft restricts waggle to the x-axis and the y-axis. However, because the golf club head predominantly moves in the direction of the x-axis, waggle will be substantially limited to this direction.
  • the width (w x ) of the shaft in the direction of the x-axis can be made to be comparatively less than the width (w y ) of the shaft in the direction of the y-axis.
  • the head of the golf club is shown to be of a rectangular block shape.
  • the top and bottom surfaces of the club head are parallel to the direction of the movement of the club head and channel the air to provide more control.
  • the club face also has a relatively large surface area for contact with the golf ball.
  • the rectangular cross-section of the shaft results in the shaft being less flexible. This allows for more weight in the club head, thus resulting in more momentum being transferred to the golf ball.
  • the golf club described above with respect to the preferred embodiments is a driver or "wood" type golf club.
  • the present invention can be used with any golf club or other instrument that is swung or rotates.
  • the shape of the cross-section of the shaft and grip can be rounded or oval in shape.

Abstract

A golf club is provided with a shaft that has a rectangular cross-section. The rectangular cross-section substantially restricts the movement of the golf club head to a direction parallel to the swing. The grip on the shaft also has a rectangular cross-section to guide the golfer's hands, thus providing a more consistent grip. The head of the golf club has a rectangular block shape for improved aerodynamics and a larger surface area on the club face for contact with the ball.

Description

BACKGROUND OF THE INVENTION
The sport of golf is enjoyed by professionals and amateurs alike. The sport comprises a plurality of holes, usually nine or eighteen, on an area of landscaped land with a series of obstacles, such as water and sand traps. The object of each hole is to hit the golf ball with one or a plurality of golf clubs from the starting point, the tee, into the hole using as few strokes as possible. The first stroke on each hole is the tee-off, which is the initial attempt to hit the ball as close to the hole as possible. This done by trying to hit the ball with maximum distance and accuracy. Much of this effort on the initial stroke or drive is concentrated on the physical technique of the golfer. The golfer attempts to swing the head of the golf club with speed and control to transfer the momentum of the head of the golf club to the golf ball. The golf club itself is designed to maximize the momentum transferred to the ball. The club used to drive the ball is called the driver or "wood." This club is designed with a thin shaft and a large wooden head.
The shaft is conventionally made up of a flexible material, such as a composite material. The weight of the wooden head causes the shaft to bend. This phenomenon is called "waggle." However, the club is not always swung perfectly straight, especially considering the rotation of the golfer's hands on the grip of the golf club. This causes the waggle in the shaft to affect the movement of the golf club head.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide an improved golf club which restricts the movement of the golf club head.
It is a further object of the invention to provide a golf club that has a rectangular cross-section which restricts waggle to two directions. It is a further object of the invention to provide a grip on the golf club which also has a rectangular cross-section consistent with the shaft, thus providing a clear and consistent grip and guide for the golfer's hands.
It is a still further object of the invention to provide a golf club with a head that has a rectangular block shape for improved aerodynamics and surface area for contact with the golf ball.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an illustration of a cross-section of the shaft and a handle with grip of the golf club of the present invention.
FIG. 2 is an illustration of the rectangular block shaped head of the golf club of the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
In a first embodiment of the present invention, a golf club is provided with a rectangular shaft and grip. The shaft extends between the grip and the club head and can be made of a flexible material, such as a composite material. Referring to FIG. 1, a rectangular cross-section of the shaft of the golf club is shown. As can be seen in FIG. 1, the grip on the shaft also has a rectangular cross-section. This allows the golfer to use the edges of the grip to guide the golfers hands to provide a consistent grip.
With reference to FIG. 2, the head of the golf club of the present invention is shown. As can be seen in FIG. 2, the shaft has a rectangular cross-section. FIG. 2 also illustrates an x-axis parallel to one face of the shaft and a y-axis parallel to another face of the shaft. The direction of the x-axis is the direction of the movement of the golf club head. The direction of the y-axis is perpendicular to and opposes the direction of the movement of the golf club head. The rectangular shape of the cross-section of the shaft restricts waggle to the x-axis and the y-axis. However, because the golf club head predominantly moves in the direction of the x-axis, waggle will be substantially limited to this direction. To further limit waggle to the x-axis, the width (wx) of the shaft in the direction of the x-axis can be made to be comparatively less than the width (wy) of the shaft in the direction of the y-axis.
Further with respect to FIG. 2, the head of the golf club is shown to be of a rectangular block shape. The top and bottom surfaces of the club head are parallel to the direction of the movement of the club head and channel the air to provide more control. The club face also has a relatively large surface area for contact with the golf ball. The rectangular cross-section of the shaft results in the shaft being less flexible. This allows for more weight in the club head, thus resulting in more momentum being transferred to the golf ball.
The golf club described above with respect to the preferred embodiments is a driver or "wood" type golf club. However, one skilled in the art will recognize that the present invention can be used with any golf club or other instrument that is swung or rotates. One skilled in the art will recognize that the shape of the cross-section of the shaft and grip can be rounded or oval in shape. Thus the invention should not be construed to be limited to the preferred embodiments described above, and the only limitations to the invention are as set forth in the following claims.

Claims (3)

I claim:
1. A golf club comprising:
a club head for striking a golf ball;
a grip; and,
shaft means comprising a shaft, being made up of a flexible material, extending between said club head and said grip for restricting the flexibility of said shaft to two directions, said shaft having a generally rectangular cross-section;
wherein the golf club is a driver;
wherein said shaft means has two faces which are parallel to the movement of the club head during a swing and two faces which are perpendicular to the movement of the club head during said swing; and,
wherein the width of the faces that are parallel to the movement of the club head during said swing is less than the width of the faces that are perpendicular to the movement of the club head during said swing,
whereby said shaft is arranged such that the rectangular cross-section substantially limits waggle of the shaft to a direction generally parallel to the movement of the clubhead during a swing.
2. A golf club comprising:
a club head for striking a golf ball;
a grip; and,
shaft means comprising a shaft, being made up of a flexible material, extending between said club head and said grip for restricting the flexibility of said shaft to two directions, said shaft having a generally rectangular cross-section;
wherein the golf club is a driver; and,
wherein the club head has a rectangular block shape, whereby said shaft is arranged such that the rectangular cross-section substantially limits waggle of the shaft to a direction generally parallel to the movement of the clubhead during a swing.
3. A golf club comprising:
a club head for striking a golf ball;
a grip; and,
shaft means comprising a shaft, being made up of a flexible material, extending between said club head and said grip for restricting the flexibility of said shaft to two directions;
wherein said golf club is a driver and said shaft means and said grip have a generally rectangular cross-section,
whereby said shaft is arranged such that the rectangular cross-section substantially limits waggle of the shaft to a direction generally parallel to the movement of the clubhead during a swing.
US08/888,111 1997-07-03 1997-07-03 Golf club and shaft for improved golf swing Expired - Fee Related US5947838A (en)

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US08/888,111 US5947838A (en) 1997-07-03 1997-07-03 Golf club and shaft for improved golf swing

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US08/888,111 US5947838A (en) 1997-07-03 1997-07-03 Golf club and shaft for improved golf swing

Publications (1)

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US5947838A true US5947838A (en) 1999-09-07

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Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6280346B1 (en) * 1997-07-02 2001-08-28 Robert J. Gedeon Golf putter
US6767292B1 (en) * 2001-04-26 2004-07-27 Richard John Skalla, Sr. Golf putter with a rear mounted shaft
US6783463B2 (en) * 2002-03-25 2004-08-31 Pure Pendulum Corporation Golf putter and grip therefor
US20040245000A1 (en) * 2002-03-25 2004-12-09 Lauer G. Kent Aerator device
US20040259660A1 (en) * 2002-03-25 2004-12-23 Pure Pendulum Corporation Golf putter grip
US20050239576A1 (en) * 2005-05-10 2005-10-27 Nike, Inc. Golf clubs and golf club heads
US20050239573A1 (en) * 2004-04-23 2005-10-27 Sumitomo Rubber Industries, Ltd. Golf putter and method of designing the same
US20060148586A1 (en) * 2005-01-03 2006-07-06 Callaway Golf Company Golf Club Head
US20070111819A1 (en) * 2005-01-03 2007-05-17 Gibbs Evan D Golf Club Head
US20070149306A1 (en) * 2005-12-24 2007-06-28 Murphy Thomas A Golf clubs
US20070298903A1 (en) * 2006-06-22 2007-12-27 Nike, Inc. Golf clubs and golf club heads
WO2008066286A1 (en) * 2006-12-01 2008-06-05 Dong Sung Cho A golf club
US7407448B2 (en) 2005-01-03 2008-08-05 Callaway Golf Company Golf club head
US7488261B2 (en) 2005-01-03 2009-02-10 Callaway Golf Company Golf club with high moment of inertia
US20090088272A1 (en) * 2005-01-03 2009-04-02 Callaway Golf Company Golf club head
US20090143162A1 (en) * 2005-01-03 2009-06-04 Callaway Golf Company Golf club with high moment of inertia
US7559851B2 (en) 2005-01-03 2009-07-14 Callaway Golf Company Golf club with high moment of inertia
US7591737B2 (en) 2005-01-03 2009-09-22 Callaway Golf Company Golf club head
US20110098128A1 (en) * 2006-11-27 2011-04-28 Cobra Golf, Inc. Quick release connection system for golf clubs
US20110143858A1 (en) * 2009-12-16 2011-06-16 Callaway Golf Company External weight for golf club head
JP5695244B1 (en) * 2014-03-20 2015-04-01 正和 木場 Golf swing practice equipment
USD731608S1 (en) 2014-05-20 2015-06-09 John Krouse Baseball bat putter grip
US9302167B2 (en) 2009-09-10 2016-04-05 Cobra Golf Incorporated Golf club with directional based graphic
USD768251S1 (en) 2016-03-04 2016-10-04 Winston Products Llc Putter grip
USD772361S1 (en) 2016-03-26 2016-11-22 Winston Products Llc Putter grip
USD836737S1 (en) 2017-04-04 2018-12-25 Winston Products Llc Weighted golf club grip
US20220219056A1 (en) * 2021-01-14 2022-07-14 Beijing Dr Plant Biotechnology Co., Ltd. Golf putter for bidirectional golf putting

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* Cited by examiner, † Cited by third party
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US1171806A (en) * 1913-12-15 1916-02-15 Edwin Hamilton Winckworth Scott Golf-club.
US1480961A (en) * 1920-10-12 1924-01-15 W P Smith Sports Company Ltd Golf club
US1768378A (en) * 1929-08-21 1930-06-24 Smith Benjamin Boorman Golf-club head construction
US2146321A (en) * 1937-06-22 1939-02-07 William L Wettlaufer Golf club
US4423873A (en) * 1978-06-15 1984-01-03 Yukio Shiratori Golf club putter arrangement
US4319750A (en) * 1979-04-30 1982-03-16 Aldila, Inc. Golf shaft having controlled flex zone
US4361325A (en) * 1981-04-03 1982-11-30 Brimms Inc. Hockey stick shaft
US4506888A (en) * 1983-04-11 1985-03-26 Nardozzi Michael Jun Golf putter with interchangeable shafts and heads
US4569525A (en) * 1983-10-24 1986-02-11 Folger James D Golf club swing training device
US4537403A (en) * 1983-11-21 1985-08-27 John Farina Golf club
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US5577726A (en) * 1995-03-15 1996-11-26 Fenton; Frank Adjustable lie putter
US5711719A (en) * 1995-11-02 1998-01-27 Fireman; Stephen Golf club

Cited By (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6280346B1 (en) * 1997-07-02 2001-08-28 Robert J. Gedeon Golf putter
US6767292B1 (en) * 2001-04-26 2004-07-27 Richard John Skalla, Sr. Golf putter with a rear mounted shaft
US6783463B2 (en) * 2002-03-25 2004-08-31 Pure Pendulum Corporation Golf putter and grip therefor
US20040245000A1 (en) * 2002-03-25 2004-12-09 Lauer G. Kent Aerator device
US20040259660A1 (en) * 2002-03-25 2004-12-23 Pure Pendulum Corporation Golf putter grip
US20050239573A1 (en) * 2004-04-23 2005-10-27 Sumitomo Rubber Industries, Ltd. Golf putter and method of designing the same
US7371187B2 (en) * 2004-04-23 2008-05-13 Sri Sports Limited Golf putter and method of designing the same
US7637822B2 (en) 2004-10-07 2009-12-29 Callaway Golf Company Golf club head
US7749097B2 (en) 2004-11-04 2010-07-06 Callaway Golf Company Golf club head
US7455598B2 (en) 2005-01-03 2008-11-25 Callaway Golf Company Golf club head
US20060148586A1 (en) * 2005-01-03 2006-07-06 Callaway Golf Company Golf Club Head
US7278927B2 (en) 2005-01-03 2007-10-09 Callaway Golf Company Golf club head
US7291075B2 (en) 2005-01-03 2007-11-06 Callaway Golf Company Golf club head
US20070111819A1 (en) * 2005-01-03 2007-05-17 Gibbs Evan D Golf Club Head
US7166038B2 (en) * 2005-01-03 2007-01-23 Callaway Golf Company Golf club head
US20100216569A1 (en) * 2005-01-03 2010-08-26 Callaway Golf Company Golf club with high moment of inertia
US7407448B2 (en) 2005-01-03 2008-08-05 Callaway Golf Company Golf club head
US7749096B2 (en) 2005-01-03 2010-07-06 Callaway Golf Company Golf club head
US7850542B2 (en) 2005-01-03 2010-12-14 Callaway Golf Company Golf club with high moment of inertia
US7476161B2 (en) 2005-01-03 2009-01-13 Callaway Golf Company Golf club head
US7488261B2 (en) 2005-01-03 2009-02-10 Callaway Golf Company Golf club with high moment of inertia
US7494424B2 (en) 2005-01-03 2009-02-24 Callaway Golf Company Golf club head
US20090075753A1 (en) * 2005-01-03 2009-03-19 Callaway Golf Company Golf club head
US20090088272A1 (en) * 2005-01-03 2009-04-02 Callaway Golf Company Golf club head
US20090143162A1 (en) * 2005-01-03 2009-06-04 Callaway Golf Company Golf club with high moment of inertia
US7549935B2 (en) 2005-01-03 2009-06-23 Callaway Golf Company Golf club head
US7559851B2 (en) 2005-01-03 2009-07-14 Callaway Golf Company Golf club with high moment of inertia
US7568982B2 (en) 2005-01-03 2009-08-04 Callaway Golf Company Golf club with high moment of inertia
US7578751B2 (en) 2005-01-03 2009-08-25 Callaway Golf Company Golf club head
US7588501B2 (en) 2005-01-03 2009-09-15 Callaway Golf Company Golf club head
US7591737B2 (en) 2005-01-03 2009-09-22 Callaway Golf Company Golf club head
US7708652B2 (en) 2005-01-03 2010-05-04 Callaway Golf Company Golf club with high moment of inertia
US7674187B2 (en) 2005-01-03 2010-03-09 Callaway Golf Company Golf club with high moment of inertia
US9643065B2 (en) 2005-05-10 2017-05-09 Nike, Inc. Golf clubs and golf club heads
US9925429B2 (en) 2005-05-10 2018-03-27 Karsten Manufacturing Corporation Golf clubs and golf club heads
US20050239576A1 (en) * 2005-05-10 2005-10-27 Nike, Inc. Golf clubs and golf club heads
US10092798B2 (en) 2005-05-10 2018-10-09 Karsten Manufacturing Corporation Golf clubs and golf club heads
US9095752B2 (en) 2005-05-10 2015-08-04 Nike, Inc. Golf clubs and golf club heads
US20070149306A1 (en) * 2005-12-24 2007-06-28 Murphy Thomas A Golf clubs
US20070298903A1 (en) * 2006-06-22 2007-12-27 Nike, Inc. Golf clubs and golf club heads
US20100093462A1 (en) * 2006-06-22 2010-04-15 Nike, Inc. Golf clubs and golf club heads
US20080268979A1 (en) * 2006-06-22 2008-10-30 Nike, Inc. Golf clubs and golf club heads
US8715108B2 (en) 2006-11-27 2014-05-06 Cobra Golf Incorporated Quick release connection system for golf clubs
US20120196704A1 (en) * 2006-11-27 2012-08-02 Cobra Golf Incorporated Quick release connection system for golf clubs
US8403772B2 (en) * 2006-11-27 2013-03-26 Cobra Golf Incorporated Quick release connection system for golf clubs
US8177657B2 (en) * 2006-11-27 2012-05-15 Cobra Golf Incorporated Quick release connection system for golf clubs
US20110098128A1 (en) * 2006-11-27 2011-04-28 Cobra Golf, Inc. Quick release connection system for golf clubs
US20100261537A1 (en) * 2006-12-01 2010-10-14 Dong Sung Cho Golf club
WO2008066286A1 (en) * 2006-12-01 2008-06-05 Dong Sung Cho A golf club
US9302167B2 (en) 2009-09-10 2016-04-05 Cobra Golf Incorporated Golf club with directional based graphic
US8414422B2 (en) 2009-12-16 2013-04-09 Callaway Golf Company External weight for golf club head
US20110143858A1 (en) * 2009-12-16 2011-06-16 Callaway Golf Company External weight for golf club head
JP5695244B1 (en) * 2014-03-20 2015-04-01 正和 木場 Golf swing practice equipment
USD731608S1 (en) 2014-05-20 2015-06-09 John Krouse Baseball bat putter grip
USD810851S1 (en) 2016-03-04 2018-02-20 Winston Products, Llc Putter grip
USD768251S1 (en) 2016-03-04 2016-10-04 Winston Products Llc Putter grip
USD772361S1 (en) 2016-03-26 2016-11-22 Winston Products Llc Putter grip
USD836737S1 (en) 2017-04-04 2018-12-25 Winston Products Llc Weighted golf club grip
US20220219056A1 (en) * 2021-01-14 2022-07-14 Beijing Dr Plant Biotechnology Co., Ltd. Golf putter for bidirectional golf putting

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